Helicobacter pylori is a gram-negative bacillus, spiral, microaerophilic, and very strict requirements on the growth conditions. For the first time in 1983, it was successfully isolated from the biopsy of gastric mucosa in patients with chronic active gastritis. It is known to be able to The only microbial species that survives in the human stomach.
Helicobacter pylori disease includes gastritis caused by infection with H. pylori, peptic ulcer, lymphoid proliferative gastric lymphoma, and the like. The poor prognosis of H. pylori disease is gastric cancer.